ruby on rails - How to filter results with Ransack -

i trying implement ransack search feature on website. tried watching railscasts on ransack , got pretty idea of how implement it. running issue can't seem figure out.

in index action of users controller, have following code:

def index    @users = user.same_city_as(current_user) end 

@users activerecord::relation object. @users capturing users belong same city current_user. in view able iterate through @users , display users belonging same city current_user. good. want able filter these results based on range of age provided user. per railcasts, this:

def index   @search = user.search(params[:q])   @users = @search.result end 

but don't have same city scope anymore. want display users belonging same city current_user default , filter results age.

ransack works scopes, can chain own scopes.

assuming user.same_city_as returns scope (an activerecord::relation instance) can this:

@search = user.same_city_as(current_user).search(params[:q]) @users = @search.result 

and @search.result returns scope, too, can apply further modifications it, pagination example.

with kaminari like:

@search = user.same_city_as(current_user).search(params[:q]) @users = @search.result.page(params[:page])